Short answer: the Harman Kardon Onyx Studio 6, unless deep bass is the priority. The Tribit Stormbox Blast 2 offers pretty deep bass but sounds quite muddy with boosted lower and upper bass and boosted treble around 6kHz. The Onyx Studio 6 is warm with boosted bass and not as loud as others, at $130 against $299.99.
What the Harman Kardon Onyx Studio 6 offers: Warm sound with boosted bass. Oluv liked it slightly better than the newer Onyx 7. Watch for: 8 hour battery at medium volume. Not at loud as others.
Buy the Tribit Stormbox Blast 2, since the Harman Kardon Onyx Studio 6 is discontinued and only worth hunting down used.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Harman Kardon Onyx Studio 6 | Tribit Stormbox Blast 2 | |
|---|---|---|
| Price | $130 Discontinued | $299.99 |
| Ranked | #13 of 90 in Boombox Size Portable Bluetooth Speakers | #31 of 90 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 37Hz | 40Hz |
| Battery Life | 8 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| Built-in Microphone | Yes | No |
| IP Rating | IPX7 | IP67 |
| Bluetooth Latency | 180ms | - |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) | 110dB (measured by Alan Ross Reviews) |
| Party Mode | Yes (Wireless Dual Sound) | No |
| Power Input | DC Barrel Connector (19V/2A) | AC Power Cable or 10w USB-C |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | Yes (see https://www.reddit.com/r/Bluetooth_Speakers/comments/w339x5/how_to_harman_kardon_onyx_studio_5_6_dual_sound/) | Yes |
| Weight | 6.5 lbs (2.94 kg) | 19.2 lbs (8.7 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC |
| App | No | Yes (Tribit app) |
| EQ | No | Yes (10 band) |
| Power Bank | No | Yes (USB-A) |
| USB Playback | No | No |
| Bluetooth Version | 4.2 | 5.4 |
| Amplifier Power | 50W RMS | 200W AC / 180W battery |
| Dimensions | 5” x 11.5” x 11.2” (128 x 291 x 284 mm) | 18.7” x 7.6” x 10.2” (476 x 193 x 259 mm) |
| Drivers | 1x 120mm (4.7”) woofer + 1x 25mm (1”) tweeter + 1x passive radiator | 1x ~180x110mm rectangular subwoofer + 2x ~80mm mid drivers + 2x ~25mm tweeters |
| Digital Aux Input | No | No |
| Strap | No | No |
| Microphone Input | - | Yes (2x 6.35mm) |
| FM Tuner | - | No |
| MicroSD Playback | - | No |
Related Speaker Comparisons
More top alternatives to Harman Kardon Onyx Studio 6:
- Tribit Stormbox Blast vs Harman Kardon Onyx Studio 6
- Harman Kardon Go + Play 3 vs Harman Kardon Onyx Studio 6
- JBL Partybox Encore 2 vs Harman Kardon Onyx Studio 6
- JBL Partybox Encore Essential 2 vs Harman Kardon Onyx Studio 6
- JBL Partybox Encore vs Harman Kardon Onyx Studio 6
Prices on this page were last checked October 3, 2026 at 10:26 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
Harman Kardon Onyx Studio 6: $130 Discontinued Amazon eBay
Newer model: the Harman Kardon Onyx Studio 9, ranked lower, rated 4.1/5.
Pros: Harman Kardon Onyx Studio 6 uses a 120mm woofer, 25mm tweeter and passive radiator. Its 2.94 kg, claimed 8 hours (Manufacturer specified) battery life, IPX7 protection, aux input and up to 96dB make it a practical option for its intended room or portable use. Measured bass extension of 37Hz (-10dB).
Cons: Bass is limited by its 37Hz specification. There is no companion app. No EQ adjustment. Warm tuning with boosted bass, and not as loud as others. Discontinued.
Full Harman Kardon Onyx Studio 6 review and specifications →
| Amplifier Power | 50W RMS |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 37Hz |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 180ms |
| Bluetooth Version | 4.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 5” x 11.5” x 11.2” (128 x 291 x 284 mm) |
| Drivers | 1x 120mm (4.7”) woofer + 1x 25mm (1”) tweeter + 1x passive radiator |
| EQ | No |
| IP Rating | IPX7 |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (Wireless Dual Sound) |
| Power Bank | No |
| Power Input | DC Barrel Connector (19V/2A) |
| Stereo | No |
| Strap | No |
| TWS | Yes (see https://www.reddit.com/r/Bluetooth_Speakers/comments/w339x5/how_to_harman_kardon_onyx_studio_5_6_dual_sound/) |
| USB Playback | No |
| Weight | 6.5 lbs (2.94 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Onyx Studio 7 vs Onyx Studio 6 - massive deep bass battle 😁 More from alanrossreviews →
- That Speaker Guy: Harman Kardon Onyx Studio 6 vs Devialet Mania
- Ezekielo: Citation 200 vs Onyx Studio 6 vs Bose Portable Speaker Sound Comparison
- Alan Ross Reviews: Harman Kardon Go+ Play 2 mini or Onyx Studio 6 - best speaker for bass?
- Alan Ross Reviews: Ultimate HK Onyx Studio speaker review and comparison! 8 speakers!
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Tribit Stormbox Blast 2: $299.99 Amazon eBay
Older model: the Tribit Stormbox Blast (ranked higher, rated 4.5/5).
Pros: Pretty deep bass. Measured bass extension of 40Hz (-10dB).
Cons: Sounds quite muddy with the boosted lower and upper bass. Boosted treble around 6kHz. Xbass mode makes it sound even more muddy. Nowhere near as neutral and balanced as the first Blast and a big downgrade unless you only care about max volume
Setup: Try the EQ from Alan Ross at this timestamp of his video
Full Tribit Stormbox Blast 2 review and specifications →
| Amplifier Power | 200W AC / 180W battery |
|---|---|
| App | Yes (Tribit app) |
| Aux Input | Yes |
| Bass Extension (-10dB) | 40Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 18.7” x 7.6” x 10.2” (476 x 193 x 259 mm) |
| Drivers | 1x ~180x110mm rectangular subwoofer + 2x ~80mm mid drivers + 2x ~25mm tweeters |
| EQ | Yes (10 band) |
| FM Tuner | No |
| IP Rating | IP67 |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) |
| MicroSD Playback | No |
| Microphone Input | Yes (2x 6.35mm) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power Cable or 10w USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 19.2 lbs (8.7 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: Tribit Stormbox Blast 2 - outdoor sound test More from Oluv’Sone →
- Joy & Oluv’Sone: Tribit Stormbox Blast 2 - indoor sound test
- Joy & Oluv’Sone: Tribit Stormbox Blast 2 vs 2 Earfun UBoom X - outdoor test
- Alan Ross Reviews: Tribit Stormbox Blast 2 custom EQ best settings! Alan Ross! More from alanrossreviews →
- Alan Ross Reviews: Tribit Stormbox Blast 2 firmware V11 update - earthquake warning!
- Alan Ross Reviews: Tribit Stormbox Blast 2 review - fun fun fun! sometimes 😊
- Mateusz Cholewa: Soundcore Rave 3 🤗v🆚s Tribit Stormbox Blast 2👌🎶 More from Mateusz Cholewa →
- Jay’s Straight Up Reviews & More: Tribit Stormbox Blast 2 😳 First Look, EQ and Light Modes Demo 🚨 More from JaysStraightUpReviews →
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- Jagist reviews: Zealot Ze21 Vs Tribit Stormbox Blast 2!!! More from Jagistreviews →
- Jagist reviews: Zealot S95 Vs Tribit Stormbox Blast 2!!!
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